What's better than pillow fights? Starting pillow fights with random people on the street!
I'm not sure if the Olympic Games Committee have recognised it officially as a sport yet but surely it's only a matter of time? Although it took us over two years to find it, it has a lot of plus points. It's cheap, it requires very little training and it has a relatively low risk of being dragged through the gutter by drugs scandals or match fixing allegations.
hat-tip: reddit